Merge pull request #70275 from rune-scape/autoload-subscript-regression

Fix autoload subscript regression

modules/gdscript/gdscript_analyzer.cpp

@@ -3627,7 +3627,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri
 				result_type = attr_type;
 				p_subscript->is_constant = p_subscript->attribute->is_constant;
 				p_subscript->reduced_value = p_subscript->attribute->reduced_value;
-			} else if (!base_type.is_constant) {
+			} else if (!base_type.is_meta_type || !base_type.is_constant) {
 				valid = base_type.kind != GDScriptParser::DataType::BUILTIN;
 #ifdef DEBUG_ENABLED
 				if (valid) {